CVE-2021-0276 is a vulnerability in Juniper Networks Steel Belted Radius Carrier
Published on July 15, 2021
Steel-Belted Radius Carrier Edition: Remote code execution vulnerability when EAP Authentication is configured.
A stack-based Buffer Overflow vulnerability in Juniper Networks SBR Carrier with EAP (Extensible Authentication Protocol) authentication configured, allows an attacker sending specific packets causing the radius daemon to crash resulting with a Denial of Service (DoS) or leading to remote code execution (RCE). By continuously sending this specific packets, an attacker can repeatedly crash the radius daemon, causing a sustained Denial of Service (DoS). This issue affects Juniper Networks SBR Carrier: 8.4.1 versions prior to 8.4.1R19; 8.5.0 versions prior to 8.5.0R10; 8.6.0 versions prior to 8.6.0R4.
Vulnerability Analysis
CVE-2021-0276 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be critical as this vulnerability has a high impact to the confidentiality, integrity and availability of this component.
Weakness Type
What is a Stack Overflow Vulnerability?
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
CVE-2021-0276 has been classified to as a Stack Overflow vulnerability or weakness.
Products Associated with CVE-2021-0276
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Affected Versions
Juniper Networks SBR Carrier:- Version 8.4.1 and below 8.4.1R19 is affected.
- Version 8.5.0 and below 8.5.0R10 is affected.
- Version 8.6.0 and below 8.6.0R4 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.